On our way into Yellow Cat where we were going to camp, the last couple hundred yards of the road is on the surface of one single giant, extremely rough and bouncy rock. On our way in, we had full pressure in the tires, and damned near broke our teeth getting to where we were going to camp. Because we purchased this quality tire pump that runs off of the battery, we were able to drop the pressure of the tires for the trip out, and then refill them once we got back on smooth surface. What a difference! I suspect we will be using this tool a lot in our future drives!